Ampro Corporation Single Board Computer Littleboard 550 - Manual (Page 3)

LittleBoard 550 Reference Manual iii
Contents
Chapter 1 About This Manual .........................................................................................................1
Purpose of this Manual.......................................................................................................................1
Reference Material .............................................................................................................................1
Related Ampro Products ....................................................................................................................2
Chapter 2 Product Overview...........................................................................................................5
EBX Architecture ................................................................................................................................5
Product Description ............................................................................................................................6
Board Features...............................................................................................................................7
Block Diagram ..............................................................................................................................10
Major Integrated Circuits (ICs) .....................................................................................................11
Connector Definitions ...................................................................................................................12
Additional Components ................................................................................................................12
Jumper Definitions........................................................................................................................14
LED Definitions.............................................................................................................................14
Specifications....................................................................................................................................16
Physical Specifications.................................................................................................................16
Mechanical Specifications ............................................................................................................17
Power Specifications ....................................................................................................................19
Environmental Specifications .......................................................................................................19
Thermal/Cooling Requirements....................................................................................................19
Chapter 3 Hardware .......................................................................................................................21
Overview .......................................................................................................................................21
CPU (U1) .......................................................................................................................................22
Memory .......................................................................................................................................22
SDRAM Memory (DIMM1) ...........................................................................................................22
Flash Memory (U17).....................................................................................................................22
Serial EEPROM (SEEP)...............................................................................................................22
Interrupt Channel Assignments ....................................................................................................23
Memory Map.................................................................................................................................23
I/O Address Map ..........................................................................................................................24
PC/104-Plus Interface (J21) .............................................................................................................25
PC/104 Interface (J1A,B,C,D) ..........................................................................................................30
IDE Interface (J12, J17)....................................................................................................................35
CompactFlash Adapter (J23)............................................................................................................39
Floppy Drive Interface (J14) .............................................................................................................41
Parallel Port Interface (J15)..............................................................................................................42
Serial Interfaces (J11, J13)...............................................................................................................43
Utility Interfaces ................................................................................................................................47
Utility 1 Interface (J16)......................................................................................................................47
Keyboard Interface .......................................................................................................................47
External Battery ............................................................................................................................47
Reset Switch ................................................................................................................................47
PC Speaker ..................................................................................................................................47
Utility 2 Interface (J24)......................................................................................................................48
Mouse Interface............................................................................................................................48
System Management Bus (SMBus) .............................................................................................48